[Bug 1894996] Re: Can't upgrade to 20.04 from 18.04

[Brian Murray]

Reviewing the files from your upgrade attempt you have installed nodejs
from a location other than the offical Ubuntu archive. This version of
nodejs is greater than the one in the official archive and is keeping
some python packages installed which then prevents the upgrade from
being calculated. Please remove nodejs along with any other packages
from that archive and disable the archive. After that you can try
upgrading again and if it still fails open a new bug report. Thanks and
good luck!

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Invalid

** Tags added: nodesource-nodejs

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Title:
  Can't upgrade to 20.04 from 18.04

Status in ubuntu-release-upgrader package in Ubuntu:
  Invalid

Bug description:
  2020-09-09 15:32:13,664 DEBUG running doUpdate() (showErrors=True)
  2020-09-09 15:32:22,982 DEBUG openCache()
  2020-09-09 15:32:23,492 DEBUG Comparing 4.15.0-115 with 
  2020-09-09 15:32:23,492 DEBUG Comparing 4.15.0-117 with 4.15.0-115
  2020-09-09 15:32:23,603 DEBUG /openCache(), new cache size 66285
  2020-09-09 15:32:23,603 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
  2020-09-09 15:32:23,604 DEBUG quirks: running PreDistUpgradeCache
  2020-09-09 15:32:23,604 DEBUG running Quirks.PreDistUpgradeCache
  2020-09-09 15:32:23,604 INFO installing python-is-python2 because python-minimal was installed
  2020-09-09 15:32:23,604 DEBUG Installing 'python-is-python2' (python-minimal was installed on the system)
  2020-09-09 15:32:23,743 ERROR Dist-upgrade failed: 'E:No se pudieron corregir los problemas, usted ha retenido paquetes rotos.'
  2020-09-09 15:32:23,746 DEBUG abort called
  2020-09-09 15:32:23,747 DEBUG openCache()
  2020-09-09 15:32:25,558 DEBUG Comparing 4.15.0-115 with 
  2020-09-09 15:32:25,558 DEBUG Comparing 4.15.0-117 with 4.15.0-115
  2020-09-09 15:32:25,731 DEBUG /openCache(), new cache size 99516

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.38
  ProcVersionSignature: Ubuntu 4.15.0-117.118-generic 4.15.18
  Uname: Linux 4.15.0-117-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.17
  Architecture: amd64
  CrashDB: ubuntu
  Date: Wed Sep  9 15:32:52 2020
  InstallationDate: Installed on 2019-01-04 (614 days ago)
  InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=es_ES.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-09-09 (0 days ago)
  mtime.conffile..etc.update-manager.release-upgrades: 2020-09-09T13:54:36.500052

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